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<FONT color="green">001</FONT>    package org.hackystat.telemetry.analyzer.language.ast;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import org.hackystat.telemetry.analyzer.language.TelemetryLanguageException;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    /**<a name="line.6"></a>
<FONT color="green">007</FONT>     * Definition for telemetry "streams" object. A streams object consists of one or more telemetry<a name="line.7"></a>
<FONT color="green">008</FONT>     * streams.<a name="line.8"></a>
<FONT color="green">009</FONT>     * <a name="line.9"></a>
<FONT color="green">010</FONT>     * @author (Cedric) Qin Zhang<a name="line.10"></a>
<FONT color="green">011</FONT>     * @version $Id$<a name="line.11"></a>
<FONT color="green">012</FONT>     */<a name="line.12"></a>
<FONT color="green">013</FONT>    public class TelemetryStreamsDefinition extends TelemetryDefinition {<a name="line.13"></a>
<FONT color="green">014</FONT>    <a name="line.14"></a>
<FONT color="green">015</FONT>      private String description;<a name="line.15"></a>
<FONT color="green">016</FONT>      private Expression expression;<a name="line.16"></a>
<FONT color="green">017</FONT>      private Variable[] variables;<a name="line.17"></a>
<FONT color="green">018</FONT>      <a name="line.18"></a>
<FONT color="green">019</FONT>      /**<a name="line.19"></a>
<FONT color="green">020</FONT>       * Constucts this instance.<a name="line.20"></a>
<FONT color="green">021</FONT>       * <a name="line.21"></a>
<FONT color="green">022</FONT>       * @param name The name of this definition.<a name="line.22"></a>
<FONT color="green">023</FONT>       * @param expression The expression that defines this telemetry "streams" object.<a name="line.23"></a>
<FONT color="green">024</FONT>       * @param variables The variables used in the expression. Variables are essentially holding<a name="line.24"></a>
<FONT color="green">025</FONT>       *        places so that real value can be swapped in when the expression is evaluated.<a name="line.25"></a>
<FONT color="green">026</FONT>       *        Null is valid if there is no variable used in this definition.<a name="line.26"></a>
<FONT color="green">027</FONT>       * @param textPosition The text position of the definition string in the input.<a name="line.27"></a>
<FONT color="green">028</FONT>       * <a name="line.28"></a>
<FONT color="green">029</FONT>       * @throws TelemetryLanguageException If the variable array contains duplicated variable<a name="line.29"></a>
<FONT color="green">030</FONT>       *         declaration or does not declare all variables needed by the expression.<a name="line.30"></a>
<FONT color="green">031</FONT>       */<a name="line.31"></a>
<FONT color="green">032</FONT>      public TelemetryStreamsDefinition(String name, Expression expression,<a name="line.32"></a>
<FONT color="green">033</FONT>          Variable[] variables, TextPosition textPosition) throws TelemetryLanguageException {<a name="line.33"></a>
<FONT color="green">034</FONT>        <a name="line.34"></a>
<FONT color="green">035</FONT>        super(name, textPosition);<a name="line.35"></a>
<FONT color="green">036</FONT>        this.expression = expression;<a name="line.36"></a>
<FONT color="green">037</FONT>        this.variables = variables == null ? new Variable[0] : variables;<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>        // check whether template list contains duplicated declaration<a name="line.39"></a>
<FONT color="green">040</FONT>        //HashSet set = new HashSet(); // don't use tree set, see TemplatedParameter<a name="line.40"></a>
<FONT color="green">041</FONT>        // impl.<a name="line.41"></a>
<FONT color="green">042</FONT>    //    for (Iterator iter = this.templatedParamters.iterator(); iter.hasNext();) {<a name="line.42"></a>
<FONT color="green">043</FONT>    //      TemplatedParameter param = (TemplatedParameter) iter.next();<a name="line.43"></a>
<FONT color="green">044</FONT>    //      if (set.contains(param)) {<a name="line.44"></a>
<FONT color="green">045</FONT>    //        throw new Exception("Duplicated parameter declaration.");<a name="line.45"></a>
<FONT color="green">046</FONT>    //      }<a name="line.46"></a>
<FONT color="green">047</FONT>    //      else {<a name="line.47"></a>
<FONT color="green">048</FONT>    //        set.add(param);<a name="line.48"></a>
<FONT color="green">049</FONT>    //      }<a name="line.49"></a>
<FONT color="green">050</FONT>    //    }<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>        // check whether template list contains all templates required by expression<a name="line.52"></a>
<FONT color="green">053</FONT>        //TODO: reimplement<a name="line.53"></a>
<FONT color="green">054</FONT>    //    int size = expression.size();<a name="line.54"></a>
<FONT color="green">055</FONT>    //    for (int i = 0; i &lt; size; i++) {<a name="line.55"></a>
<FONT color="green">056</FONT>    //      ExpressionElement element = expression.getElement(i);<a name="line.56"></a>
<FONT color="green">057</FONT>    //      if (element instanceof VariableOperand) {<a name="line.57"></a>
<FONT color="green">058</FONT>    //        VariableOperand variable = (VariableOperand) element;<a name="line.58"></a>
<FONT color="green">059</FONT>    //        for (Iterator iter = variable.getParameters().iterator(); iter.hasNext();) {<a name="line.59"></a>
<FONT color="green">060</FONT>    //          Parameter param = (Parameter) iter.next();<a name="line.60"></a>
<FONT color="green">061</FONT>    //          if (param instanceof TemplatedParameter) {<a name="line.61"></a>
<FONT color="green">062</FONT>    //            if (!set.contains(param)) {<a name="line.62"></a>
<FONT color="green">063</FONT>    //              throw new Exception("Undeclared parameter '"<a name="line.63"></a>
<FONT color="green">064</FONT>    //                  + ((TemplatedParameter) param).getTemplateName() + "' used.");<a name="line.64"></a>
<FONT color="green">065</FONT>    //            }<a name="line.65"></a>
<FONT color="green">066</FONT>    //          }<a name="line.66"></a>
<FONT color="green">067</FONT>    //        }<a name="line.67"></a>
<FONT color="green">068</FONT>    //      }<a name="line.68"></a>
<FONT color="green">069</FONT>    //    }<a name="line.69"></a>
<FONT color="green">070</FONT>      }<a name="line.70"></a>
<FONT color="green">071</FONT>      <a name="line.71"></a>
<FONT color="green">072</FONT>      /**<a name="line.72"></a>
<FONT color="green">073</FONT>       * Gets the expression that defines this telemetry "streams" object.<a name="line.73"></a>
<FONT color="green">074</FONT>       * <a name="line.74"></a>
<FONT color="green">075</FONT>       * @return The expression.<a name="line.75"></a>
<FONT color="green">076</FONT>       */<a name="line.76"></a>
<FONT color="green">077</FONT>      public Expression getExpression() {<a name="line.77"></a>
<FONT color="green">078</FONT>        return this.expression;<a name="line.78"></a>
<FONT color="green">079</FONT>      }<a name="line.79"></a>
<FONT color="green">080</FONT>    <a name="line.80"></a>
<FONT color="green">081</FONT>      /**<a name="line.81"></a>
<FONT color="green">082</FONT>       * Gets an array of variables used in the definition.<a name="line.82"></a>
<FONT color="green">083</FONT>       * <a name="line.83"></a>
<FONT color="green">084</FONT>       * @return An array of &lt;code&gt;Varaible&lt;/code&gt; objects. If there is no variable used,<a name="line.84"></a>
<FONT color="green">085</FONT>       *         then an empty array is returned.<a name="line.85"></a>
<FONT color="green">086</FONT>       */<a name="line.86"></a>
<FONT color="green">087</FONT>      public Variable[] getVariables() {<a name="line.87"></a>
<FONT color="green">088</FONT>        return this.variables;<a name="line.88"></a>
<FONT color="green">089</FONT>      }<a name="line.89"></a>
<FONT color="green">090</FONT>    <a name="line.90"></a>
<FONT color="green">091</FONT>      /**<a name="line.91"></a>
<FONT color="green">092</FONT>       * Gets the description of this telemetry "streams" object.<a name="line.92"></a>
<FONT color="green">093</FONT>       * <a name="line.93"></a>
<FONT color="green">094</FONT>       * @return The description.<a name="line.94"></a>
<FONT color="green">095</FONT>       */<a name="line.95"></a>
<FONT color="green">096</FONT>      public String getDescription() {<a name="line.96"></a>
<FONT color="green">097</FONT>        return this.description;<a name="line.97"></a>
<FONT color="green">098</FONT>      }<a name="line.98"></a>
<FONT color="green">099</FONT>    <a name="line.99"></a>
<FONT color="green">100</FONT>      /**<a name="line.100"></a>
<FONT color="green">101</FONT>       * Sets the description.<a name="line.101"></a>
<FONT color="green">102</FONT>       * <a name="line.102"></a>
<FONT color="green">103</FONT>       * @param description The description.<a name="line.103"></a>
<FONT color="green">104</FONT>       */<a name="line.104"></a>
<FONT color="green">105</FONT>      public void setDescription(String description) {<a name="line.105"></a>
<FONT color="green">106</FONT>        this.description = description;<a name="line.106"></a>
<FONT color="green">107</FONT>      }<a name="line.107"></a>
<FONT color="green">108</FONT>    }<a name="line.108"></a>




























































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